ASTROSAT CZTI

Data Quality Report

Orbit 21673

Creation date: 2024-06-27T18:30:57.224766
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T03_143T01_9000003208_21673cztM0_level2.evt modeM0/AS1T03_143T01_9000003208_21673cztM0_level2_quad_clean.evt
Size (bytes)414,288,00071,429,760
Size395.1 MB 68.1 MB
Events in quadrant A2,423,465459,630
Events in quadrant B3,023,801464,864
Events in quadrant C2,880,884445,526
Events in quadrant D3,862,175425,580

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01064811
B0122456
C0120163
D0150063

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5239390.744417%
B52411703.243656%
C5242621.182755%
D5242941.793209%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 5239 5239 0 0 0.00% 0.00%
B 5241 5241 82 82 1.56% 1.56%
C 5242 5242 0 0 0.00% 0.00%
D 5242 5242 147 147 2.80% 2.80%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 7042 49.99 628 615 128.6
A 0 226 5448 37.59 628 615 128.6
A 3 137 5322 36.61 628 615 128.6
B 3 64 427182 3549.83 627 612 120.2
B 0 190 37134 303.93 627 612 120.2
B 0 189 25156 204.25 627 612 120.2
C 8 208 438267 3095.74 601 606 141.4
C 14 238 94053 660.99 601 606 141.4
C 13 61 4211 25.5 601 606 141.4
D 1 52 1149024 7693.38 609 593 149.3
D 7 223 261671 1748.97 609 593 149.3
D 2 136 35543 234.13 609 593 149.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter